Improvement in carding-mach in es



UNITED STATES PATENT OFFICE.

JOSEPH DAVIS, OF EASTIVILTON, NEWY HAMPSHIRE, ASSIGNOR TO IIIMSELF AND ROYAL SOUTIIVICK.

IMPROVEMENT IN CARDING-MACHINES.

Specication forming part of Letters Patent No. 18,423, dated October 13, i857.

T0 all whom, t may concern:

Be it known that I, JOSEPH DAVIS, of East Vilton, in the county of Hillsborough and State of New Hampshire, have invented new and useful Improvements in Carding Machines; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which the carding-machine is represented in end View. v

My invention or improvement is specially applicable to cards commonly used for card ing wool; and the principal object forwhich it is designed is to prevent the wool and its finer fibers from falling from the lower side of the main cylinder of the c'ard as much as ordinary wool-cards do, and at the same time to allow the dirt and other foreign matter not fibrous to drop from the machine.

In using my improvement, it is adapted to the common woolcards, as shown in the drawings, where the main cylinder is represented at A and its outer circumference at B B B in red lines, the feed-apron at C, the feeding-rolls at D D, the burring-cylinder at 'E, the licker-in at F, the workers at G G Gr G,

the strippers at H H H H, and the fancy or brush at I. The dofng arrangements are not shown, as they are well known and are differently constructed in different cardingmachines. IVith the cards thus constructed, I add to the lower part of the card-frame a series of smooth wooden cylinders L L L L L.

L L L L. These cylinders are supported in bearings at each end, as shown at M M M M M M M M M, and are from four to eight inches in diameter, and are longer than the width of the main cylinder of the card. A belt O, passing around the pulley P and the binder Q, and thence around the outer part of all the cylinders L L L L L L L L L, and also over the pulleys on the workers, is made to give the cylinders a revolving motion.

In the operation of carding7 the wool is fed upon the apron, and, passing from it to the burring-1nacl1ine,is cleaned from large burrs and sticks, and is taken from the burringcylinder by the licker-in and thrown upon and into the teeth of the main cylinder. The workers separate and disentangle the locks of the wool, so that after it has passed them all it can be iaken'by means of a vibrating comb from the main cylinder in a carded state; but the comb or other dofng apparatus will not take from themain cylinder all the bers, as many will be entangled with the teeth and will be but partly drawn out.

The operation of the improvement by adding the cylinders L L L L L L L L L consists, first, in receiving all dirt and loose fibers upon their surfaces, and if the dirt is hard and smooth it -will immediately fall off or from them and pass down between thenr to the floor. If there are fibers of wool or locks of wool which fall upon them, the revolving' motion of the cylinders will bring them up to the teeth of the main cylinder, which will catch the fibers and carry them around to be reworked.

It is apparent that the cylinders cannot become clogged by dirt sticking to them, for in that case the teeth of the card-cylinder would take it off. A large part of the dirt, fiber, and loose material which falls from the main cylinder of the card in ordinary carding-machines, and is called waste, is detached by the dotfing-comb and does not pass along with Ithe sliver. Vith my improvement all this matter is brought to the teeth of the main card-cylinder and the teeth of the clothing will take up the fibers and the dirt will fall down between the cylinders, and the result is a great saving of material in the form of carded wool, instead of waste and refuse matter.

I am aware that a grid or grating of bars has been placed underneath the main card-cylinder of a carding-engine; but this does not operate to anything like the advantage that results from a system of rollers arranged asabove described, as with the latter the spaces between them cannot become clogged, nor the loose fibers fail to be carried up tothe main card-cylinder. A grate does become clogged and the loose fibers or waste is liable to become clogged or packed on or in its spaces.

I am also aware that a series of rollers has been arranged and applied below a picker cylinder of a machine for picking wool, the same being shown in the patent granted April 3, 1849, to Reuben Daniels and Albert G. Dewey. My application of rollers to a oarding-mztchine is a different combination of mechanism and performs functions not perforined by the rollersnnd toothed eylinder of the wool-picker, for in the lzttter the rollers are used in combination with the picker-cylinder only, whereas in my machine they are employed in combination witlra main card-cylinder and zt series of Workers and strippers, and they return the Waste fibers of wool so that they may be reworked or reoperated on by the main card-cylinder :rnd the said Workers and strippers. In the wool-picker the Waste wool, after being` raised by the rollers, is immediately thrown out of the machine by the nir-blast of the piekercylinder. Consequently I do not claim the application of a grate or grid under the main card-cylinder. Nor do I claim applying :tse-

refus' ries of rollers underneath the nmin toothed wheel of a Wool-picker; but

\Vlntt l do claim as my invention is- The ztbove-described combination and arrangement ot :t series of smooth-surface rollers with the main card-cylinder and its workers, or its Workers and strippers, and so as to operate therewith, substantially in manner and for the purpose hereindescribed, my invention having special. reference to n eerding-machine.

In testimony whereof I have hereunto set my signature.

JOSEPH DAVIS.

Witnesses:

R. H. EDDY, F. P. HALE, Jr. 

